251407215

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{40193}}^1$

素因数の和:40343

約数の個数: 24

約数和(自身を含む): 438918480

約数和(自身を除く): 187511265

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 6255, 40193, 120579, 200965, 361737, 602895, 1808685, 5586827, 16760481, 27934135, 50281443, 83802405, 251407215]

約数ペア:

[(1, 251407215), (3, 83802405), (5, 50281443), (9, 27934135), (15, 16760481), (45, 5586827), (139, 1808685), (417, 602895), (695, 361737), (1251, 200965), (2085, 120579), (6255, 40193)]